45512013 has 4 divisors (see below), whose sum is σ = 60682688. Its totient is φ = 30341340.

The previous prime is 45511997. The next prime is 45512021. The reversal of 45512013 is 31021554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45512013 - 2⁴ = 45511997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45512023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7585333 + ... + 7585338.

It is an arithmetic number, because the mean of its divisors is an integer number (15170672).

Almost surely, 2^45512013 is an apocalyptic number.

It is an amenable number.

45512013 is a deficient number, since it is larger than the sum of its proper divisors (15170675).

45512013 is a wasteful number, since it uses less digits than its factorization.

45512013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15170674.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 45512013 is about 6746.2591856524. The cubic root of 45512013 is about 357.0332651095.

Adding to 45512013 its reverse (31021554), we get a palindrome (76533567).

The spelling of 45512013 in words is "forty-five million, five hundred twelve thousand, thirteen".